The Minor gamut modulating in the meeting of fifths through 7 octaves. The sharps and flats are written to each note of the scales that vary from the Key of the 7; the Key of each ascending and descending, are also in musical clef at the end of each line.

Hughes
DIAGRAM XIX.—The minor gamut modulating in the meeting of fifths throughout 7 octaves. [Harmonies of Tones and Colours, Additional Diagrams, page 57]